JP2543145Y2 - Lifting jig for raised floor - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jig for lifting a panel for a free access floor used in a clean room which is a clean room.

[0002]

2. Description of the Related Art Conventionally, in computer rooms, information processing equipment rooms, electronic component manufacturing rooms, various laboratories, clean rooms, etc., generally, a free access floor composed of double floor boards has been used. There are various sizes of air conditioner transmission and drainage piping and equipment cables. In addition, a double floor structure of a clean room grill having a free access system on the floor is adopted for indoor clean air circulation.

[0003] For the double floor structure, there are tiles on the surface of light alloy floorboards, wooden and concrete, asbestos boards and various laminated boards and honeycomb floors. The surface is also made of synthetic resin, each sheet, There are a wide variety of things such as wood pasting, carpets and valleys. However, in a clean clean room, only a very limited number of surface materials can be used, and in some cases, a material with a surface material attached cannot be used.

A grill having a large number of holes in a floor panel for clean air conditioning is used in the whole or a part of the room. FIG. 4 is a plan view of the grill, and FIG. 5 is a partially enlarged cross-sectional view taken along line A in FIG. 4 and 5, a plurality of holes 6 provided in the floor 1 are holes through which air in a clean room is drawn by a blower below the floor 1, cleaned, and then sent again from the ceiling to perform patrol. ,
Many are installed on the floor 1.

Conventionally, when laying or removing a grill,
An appropriate rod-shaped tool or the like is inserted into the hole to lift it slightly, or after a slight gap is provided, a finger is inserted and lifted.

In the method of lifting the grill by inserting a suitable bar-shaped tool or the like into the hole as described above, it is difficult to lift the grill smoothly in the vertical direction. As a result, there is a danger that chips and scratches may occur, and that the grill may fall.

[0007]

In order to solve the above problems, the present applicant has proposed a lifting jig for a free access floor in Japanese Utility Model Laid-Open No. 62-86310. This provides a lifting member having hooks at both ends of the grip member,
A lifting member at one end is provided so as to be swingable by a certain angle. However, since the lifting member is bulky when it is carried, it is inconvenient to carry and has a problem that the work efficiency is reduced. An object of the present invention is to provide a lifting jig for a free access floor that is easy to carry without being bulky when carrying.

[0008]

According to the present invention, in order to solve the above-mentioned problems, a rib is provided at both ends of a gripping member, a lifting member having a hook hanging down from the rib is provided, and a lifting member at one inner end is provided. In the lifting jig for a free access floor provided so as to be swingable within a certain angle with the rib as a fulcrum, the lifting member can be folded in the gripping member direction with the rib pins at both ends of the gripping member as fulcrums. It was done.

[0009]

When the lifting jig is used, the two folded lifting members are opened and suspended, and the hook at the tip of the lifting member supported at one end of the gripping member is inserted into a hole in the floor. Next, the hook at the tip of one lifting member provided at the other end of the gripping member is similarly inserted into a hole in the floor, moved left and right, hooked on the rib on the back side of the grill, and lifted upward. If necessary, another lifting jig can be used, operated and hooked as described above, and both can be lifted simultaneously with both hands. If two lifting jigs are used, the grill can be lifted in a stable manner.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. FIG. 1A is a front view of the lifting jig 7 for the free access floor of the present invention, FIG. 1B is a side view thereof, and FIG.
(A) is a view showing a state in which the lifting member is folded, FIG.
3B is a side view of the same, and FIG. 3 is a bottom view of the gripping member.

1 and 2, the lifting members 11a, 1
1b has a hook 13 bent slightly at an angle θ (approximately 15 ° to 65 °) upward with respect to the horizontal, and has a mounting pin on the other head. A hole is drilled and the head has a small diameter projection.
These are prepared as two lifting members.

The grip member 8 has ribs 9 and 10 at both ends,
The central portion of the rib has a gap with a void so that the lifting members 11a and 11b can be inserted. In order to reduce the weight of the gripping member 8 as much as possible, the gripping member 8 may be made of an Al product or a synthetic resin. The through-holes 16a and 16b and the lightening portion 17 may be made lighter and have the necessary strength. I have.

The head pin hole of the lifting member 11a is aligned with the center gap of the rib 9 of the grip member 8, and the pin 12a is inserted.
The lifting member 11a is installed as if it were hung below the gripping member 8. The head of the lifting member 11a has a small diameter projection,
The lifting member 11a is stopped in a fully opened state (hanging) by a stopper 14 which is an elastic body having a slightly narrowed entrance provided in the gripping member 8. At the time of folding, the head of the lifting member 11a can be easily folded because the head of the lifting member 11a is detached from the elastic body portion by pressing down slightly inward in the direction of the arrow.

On the other hand, the lifting member 11b is installed in the same manner as described above by inserting the pin 12b into the center gap of the multi-end rib 10 and in a hanging state. However, the rib 10 and the lifting member 11b
In both cases, the position of the pin hole is provided slightly below. Of course, the direction of the hook of the lifting member 11b is the same as that of the lifting member 11a at the other end. The head of the lifting member 11b is the lifting member 11 at the other end.
It has a small-diameter projection like a, but is in a free state in which there is no elastic stopper on the gripping member 8 side. However, if the opening is more than the hanging state,
It is restricted by. The inside is free so that some movement can be performed, but the lifting member 11b in the free state is lifted up and down two or three times during lifting by lifting the entire lifting jig. Depending on the force applied at the time, the rib 1
Depending on the position of the pin 12b slightly below 0, it is expected that the pin 12b will be in a hanging state from a slight angle difference, and the lifting members 11a and 11b
Can be lifted in parallel.

In order to use the hoisting jig 7 configured as described above, the hoisting member 11b is first opened from the state shown in FIG. 2, and then the hoisting member 11a is opened until the head hits the stopper 14. First, the fixed lifting member 11a is inserted into the hole 6 at the center of the floor 1 so that the floor 1 to be lifted is in a uniform state during the lifting, and then the lifting member 11b is put on the floor 1 while supporting it.
And lift it up and down one or two times to confirm that the hook is hooked and that the angle of the lifting member 11b is in a hanging state, and lift it up.

If only one lifting jig 7 is used, and the lifting condition is poor, another lifting jig can be used as described above.
It goes without saying that the floor 1 is lifted without tilting because it is lifted by a book. Naturally, since a stable force is applied, the floor 1 can be smoothly attached / detached without chipping or damage. Although the lifting jig for the free access floor according to the present invention has been described using a grill having a long hole, the lifting jig can be applied to a grill having other round holes or deformed holes.

[0017]

[Effects of the Invention] As described above, the lifting jig for the free access floor of the present invention can fold the lifting member in the direction of the gripping member by using the pins of the ribs provided at both ends of the gripping member as fulcrums. This has the effect of making it easier to carry without being bulky when carrying it, which in turn leads to improved workability.

[0018]

[Brief description of the drawings]

1A is a front view of a lifting jig for a free access floor according to the present invention, and FIG. 1B is a side view of the same.

FIG. 2A is a state diagram in which a lifting member is folded,
(B) is the same side view.

FIG. 3 is a bottom view of the grip member.

FIG. 4 is a plan view of a clean room grill on the free access floor.

FIG. 5 is a partially enlarged sectional view of a part A in FIG. 4;

[Explanation of symbols]

 Reference Signs List 1 floor 2 rib 7 lifting jig 8 gripping member 11 lifting member 12 pin 13 hook 14 stopper 15 butting part

Claims (1)

(57) [Scope of request for utility model registration] A grip having a gap in the axial direction is provided at both ends of a gripping member, a lifting member having a hook hanging down from the rib is provided, and a lifting member at one inner end is provided with the rib serving as a fulcrum. Free access flow provided to be able to swing within the angle
A lifting jig for a free access floor, wherein the lifting member folds in the direction of the gripping member with the rib pins at both ends of the gripping member as fulcrums.